Wheel puller



A. L. CORNWELL WHEEL FULLER Aug. 9, 1932.

Original Filed March 16, 1929 Reis sued Aug. 9, 1932 UNITED STATES ARTHUR L. CORNWEIQL, F WELLSV'ILLE, NEW YORK wanna roman Original 170. 1,764,243, dated June 17, 1930, Serial No. 347,571, filed March 16, 1929. Application for reissue filed June 18, 1932. Serial No. 617,016.

This invention relates to devices for pulling gears or wheels from axles or shaftson which they are mounted, and while having other and more general fields of usefulness,

' is well adapted and designed for removing wheel hubs of automobiles from axles on which they are fitted. The particular embodiment of the invention herein'illustrated is especially designed for wheel puller uses on the current types of Ford cars and trucks,

as will hereinafter more fully explained. A

thereof, exerting an evenly distributed pull at opposite sides of the hub with a'gripping efi'ect or clampin efi'ectu on. the hub that increases automatically an correspondingly with the increase of ull. Further objects are to provide a sim e, strong and reliable device that is instant y and easily adjusted to different sizes anddesigns of wheel hubs 26 within its range with an equally effective clam ing and pulling action upon each of the ifierent types and sizes of hubs for which it is designed. I Wheel pullers of the t pe of my invention 30 ordinarily comprise a body member with means for engaging the hub of the wheel to be pulled and a power screw threaded into the body member and engageable with the axle to force the wheel therefrom. It is well known that a considerable force is required to loosen these wheels from their axles and this requirement not only demands much work and effort from the operator but L also places a considerable strain on the 49 puller. One improved feature of my invention is the provision of means bywhich much of this effort and strain is eliminated and the wheel ulled with greater ease and efliciency. is means is in the nature of a hammerhead handle on the power screw and adapted to receive the blows of a hammer to cause rotation of the screw and jarring of the wheel in the pulling operation. The provision of such a means for simultaneously vibrating the wheel and rotating the power screw comprises one of the objects of my invention.

, Theforegoing and other objects and advantages of the invention will be better understood from the following detailed descriptiontaken in connection with the accompanying drawing and the distinctive features of'novelty will be thereafter pointed out in the appended claims. I

Referring to the drawing:

Fig. 1 is a view partly in elevation and partly in longitudinal section showing a preferredembodiment of the invention applied to the wheel hub of a current Ford truck;

Fig. 2 is an elevation at right angles to Fig. l;

Fig.3 is a fragmentary elevation showing the manner of engagement of the device Fig. 4 is a fragmentary section taken on line H of Fig. 1; and,

witih the hub of a current type of Ford car; I

Fig. 5'is a sectional detail illustrative of the pivoted latch structure.

10 indicates the body of the device which I is of stout integral construction provided at an intermediate point with a bore 11, which provides a bearing for a stout pin'l2. This pin hasits ends engaged in the sides of a stout latch or stirrup member 13, which'is thus pivoted to the body 10. 'This'latch or stirrup is of a dimension so that its sides. will clear the hub flange of the different types of hub for which the device is designed, and

its intermediate portion is formed witha ledge 14 inclined with reference to the body portion of the latch to an extent so that when the latch is swung down behind the flangeF of the wheel hub, thisledge will be approxi- I I mately flush with the inner side of said flange,

1. e., transverse of the axial line of the hub.-

The latch 13 at the locality of engagement with the hub is concaved as indicated at 15,,

so as to approximately fit the circumference of the hub, so that the latch or stirrup is adapted to fit in closely against the flange F and down to the base thereof as indicated in Fig. 1 when the device is applied for use.

The body 10 is also equipped with a hook v or beak portion 16 extending from the pivot bore 11 approximately the same distance as the latch 13 and formed with a'transverse I ledge 17 is so designed with reference to the latch 13, that the ledge 17 will'lie flush against the hub flange in cooperation with the ledge 14 fora given size of hub i. e as shown for the hub of a Ford truck.

11 the device is to be applied to a smaller hub, e. g., the current type of Ford passenger .car, a portion of the hub of which is indicated in Fig. 3 at H, the beak and latch, of course, have to swing in further towards each other, and to eflt'ect the proper e agement of the beak with the flange F 0 this hub, the beak is provided with a notch or recess 18 in its extremity of a size adapted to receive the flange F and engage it snugly. The body 10 is provided with, an inward armor extension 19 approximately at right angles to. the beak 16, and this arm is formed with a threaded bore 20 adapted to receive a threaded operating stem or power screw 21. This stem has an extremity 21a adapted to engage the end of the wheel axle A to exert the uisite the h lili therefrom. I

These pulling operations ordinarily require that a very considerable turning efi'ort ration most effectively to withstand this strain, it is nevertheless ver essential that the device be otherwise suc as to reduce this eflort and strain to a minimum. It is well known that loosening or pulling operations of thisnature are greatly facilitated b or vibrating the object to be loosene aki this fact into consideration, I have fapplie an operating handle 22 to the power screw where y the screw is not only more easily rotated to efiect the pulling operation but where such operation also simultaneously performs the function of vibrating or arrfng the'puller and hub to assist in loosening the latter from the axle, the handle ha said extension adapted to engage the end of an enlar d hub portion preferably integr therewi-t and rigidly aflixed tothe outer end of the screw- This handle is provided with one or more hammerheads 23 t ereon for receivin the blows of a'hammer to cause rotation 0 the screw, and for convenience I shall pressure thereon for extracting ing the heads 23 with a hammer. This method of rotating the screw is not only easier on the operator but serves the additional and more important functions of jarring the puller and wheel and simultaneously giving the screw relatively sudden and sharp turning movements. These simultaneous operations result in loosening the wheel of the latch and beak respectively, so that the operative pressure is always applied directly 1n line with the hub axis, also that the clamping effect of the latch and beak against the opposite sides of the hub increases progressively as the operative pressure increases, so there is no danger of the deviceslipping 01f to injure the hub or puller. By the provision of the supplemental notch seat 18, the device is correctly centered for a range of smaller sizes of hubs as well as for a range of larger sizes.

With the described construction an exceptionally rugged tool is provided with low machiningcosts and with a capability of be ing instantly applied to the hub, and as quickly removed therefrom. be applied to the power screw and thls force places a heavy strain on the puller, and while I have constructed my puller of a configu- I am aware that the invention may be embodied 'in other forms without departing from the spirit or essential attributes thereof, and I, therefore, desire the present embodiment tobe considered in all respects as illustrative and notv restrictive, referrin to the ap ended claims rather than to the oregoing escription to indicate the scope of the invention- Having now described my invention, what I claim as new and what I desire to secure by Letters Patent is: I

1. A device of the kind described comprising a body equip ed with a hub engaging beak, a yoke shaped latch pivoted to said bod equipped to engage the hub opposite said beak, said body vequipped with an ofiset extension, and an operating stem threaded in an axle within said hub.

2. A wheel puller comprising a body member equipped with a hub engaging ledg a member pivoted to said body at a point re atively remote from said ledge and also having a ledge to engage a wheel hub, said body having an ofl'set portion, and an operating stem fitted in said ofi'set portion adaptedto engage a wheel axle within such hub, said v stem having an operating handle.

3.A wheel puller. comprising a body eqiiip ed with a hub engaging ledge, said 1e ge aving a notch in the outer portion thereof for the purpose stated, a member pivoted to said body equipped with a led adapted to cooperate with the ledge on said body for engaging a wheel hub at opposite sides thereof, and an operatin stem threaded in said body in relatlvely 0 set and transverse relation to said pivot adapted to engage the end of a wheel axle within such hub and to exert pressure in a direct axial line thereof.

4. A wheel puller comprisin a body member, means cooperating therewith to hold the hub of a wheel, a power screw threaded axially into the member for engaging against the end of the axle on which the wheel is 16 mounted, and a hammerhead handle rigidly afiixed to the outer portion of the screw for receivin the blows of a. hammer to cause r0- tation M the screw and jarring of the wheel in the pulling operation.

5. A wheel puller comprisin a body member, means cooperating therewith to hold the hub of a wheel, a power screw threaded axiall into the member for engaging against the en of the axle on which the wheel 1s mount- 2 ed, and a handle ri 'dly carried by an enlarged hub portion t ereof rigidly affixed to the outer portion of the screw and having hammerheads on opposite ends thereof at opposite sides of the screw for receivin the 80 blows of a hammer to cause rotation 0% the screw and jarring of the wheel in the pulling operation.

In witness whereof I aflix my signature this 10th day of June, 1932.

ARTHUR L. CORNWELL. 

